@justine being interested about radiocomms since my teens (well… 30y ago!) I’ve been reading a lot about radio navigation and marine HF broadcasting.
Did you have the chance to fix/install HF Radiofacsimile devices? To me, these devices were just « KISS » principle applied. I get great pleasure from decoding these broadcasts at home, while I have no special interest in marine weather itself. I think the analogue FSK principle of the device appeals me, (much more than JPEG), and the free over-the-air HF broadcasting, far from any satellite usage fee, for the public interest of safety, seems so fundamental to me. I guess It matches basic principles of « open source » « free software », and that might explain my interest in both utility broadcasting and free software. Long life to HFFAX ! Long life to RTTY/SYNOP and others ! Some day, as it was the case with LW broadcasting, DWD will stop emitting, because of costs or « obsolescence ». This day will be a hard day for me. Until some satellites get targeted by some enemy and maybe shortwave will regain some unexpected love…